High-toughness modified epoxy anticorrosive paint

Abstract

The invention relates to the technical field of epoxy anticorrosive paint. The invention further discloses a high-toughness modified epoxy anticorrosive coating. The coating is prepared from the following raw materials in parts by weight: 70 parts of waterborne epoxy emulsion, 8 parts of zinc phosphate, 4 parts of titanium dioxide, 6 parts of aluminum triphosphate, 5 parts of micaceous iron oxide,3 parts of white carbon black, 0.3 part of leveling agent Sp-32, 2 parts of coupling agent A16 and 0.3 part of defoamer BYK-141. The preparation process of the high-toughness modified epoxy anticorrosive paint comprises the following steps: step 1, adding the water-based epoxy emulsion, the leveling agent Sp-32, the coupling agent A16 and the defoamer BYK-141 into a conical mixing container; 2, adding zinc phosphate, titanium dioxide, aluminum triphosphate, mica iron oxide and white carbon black into a spherical mixing tank; and 3, starting a stirring device, and uniformly stirring and mixingall the components to prepare the high-toughness modified epoxy anticorrosive paint. The invention solves the technical problem of high brittleness of the epoxy anticorrosive paint due to many epoxygroups in the epoxy resin.

Description

technical field [0001] The invention relates to the technical field of epoxy anticorrosion coating modification, in particular to a modified epoxy anticorrosion coating with high toughness. Background technique [0002] Epoxy anti-corrosion coating is a kind of epoxy resin as film-forming substance, which is prepared by adding anti-corrosion fillers, additives and solvents. Epoxy resin anti-corrosion coatings have become the most widely used heavy-duty anti-corrosion coatings for marine anti-corrosion coatings due to their excellent corrosion resistance, chemical resistance, abrasion resistance, permeability resistance, strong adhesion, high strength, and low shrinkage. One of the paints. At present, the long-term anti-corrosion epoxy coatings that have been produced show excellent anti-corrosion performance, but due to the large number of epoxy groups in the epoxy resin, the material is brittle, so it must be modified to expand its application range. Contents of the inve...

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Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides a high-toughness modified epoxy anti-corrosion coating to solve the technical problem that the epoxy anti-corrosion coating has a high brittleness due to the large number of epoxy groups in the epoxy resin

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